Categories:

Numeric Functions (Trigonometric)

COS

Computes the cosine of its argument; the argument should be expressed in radians.

Syntax

COS( <real_expr> )

Arguments

real_expr

This expression should evaluate to a real number. The value should be in radians, not degrees.

Examples

SELECT COS(0), COS(PI()/3), COS(RADIANS(90));

--------+-------------+------------------+
 COS(0) | COS(PI()/3) | COS(RADIANS(90)) |
--------+-------------+------------------+
 1      | 0.5         | 6.123233996e-17  |
--------+-------------+------------------+